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Cub Cadet 682 Engine

Cub Cadet 682 Engine Specifications

Engine Model - Kohler KT17
Engine Type - 4-Stroke, gasoline, twin-cylinder air-cooled
Number of Cylinders - 2
Displacement, cc (cu.in) - 692 (42.2)
Engine Bore, mm (in) - 79.4 (3.13)
Engine Stroke, mm (in) - 69.8 (2.75)
Rated Engine Power, hp (kW) - 17.0 (12.7)
Rated Engine Speed, rpm - 3600
Fuel System Type - Carburetor
Carburetor Model - Kohler
Carburetor Type - Side draft, adjustable jet
Fuel Pump - Mechanically operated
Governor - Mechanical
Lubrication - Pressurized
Oil Pump - Rotor type
Oil Capacity, L (qts) - 1.42 (1.50)
Electrical System Rating, Volts - 12
Charging System - Alternator
Weight, kg (lbs) - 53.5 (118)

Cub Cadet 682 Engine Maintenance Data

Valve Adjustment

Intake Valve Clearance (Cold), mm (in) - 0.076-0.152 (0.003-0.006)
Exhaust Valve Clearance (Cold), mm (in) - 0.278-0.354 (0.011-0.014)
Valve Lift (Zero Lash), mm (in) - 7.11 (0.280)
Intake Valve Stem to Guide (Max), mm (in) - 0.114 (0.0045)

Engine Oil and Filters

Engine Oil Type (Summer) - SAE 30
Engine Oil Type (Winter) - SAE 5W-20, 5W-30
Oil Classification - SF or SG
Oil Capacity (w/o Filter), L (qts) - 1.5 (1.6)
Oil Capacity (with Filter), L (qts) - 1.9 (2.0)
Oil Filter Part Number - 12-050-01-S
Air Filter Part Number - 45-083-02-S

Carburetor Adjustment

Main Fuel - 2-1/2 turns
Idle Fuel - 1 to 1-1/4 turns
Low Idle Speed, rpm - 1200±75
High Idle Speed, rpm - 3600±50

Ignition System

Spark Plug Type - Champion RBL15Y
Spark Plug Gap, mm (in) - 0.635 (0.025)
Breaker Point Gap, mm (in) - 0.432-0.580 (0.017-0.023)
Thread Size, mm (in) - 14 (0.55)
Spark Plug Reach, mm (in) - 11.7 (0.46)
Spark Plug Torque, Nm (ft-lbs) - 14-20 (10-15)

Cub Cadet 682 Engine Service Specifications

Cylinder Block

Cylinder Bore Diameter (Std), in (mm) - 3.125 (79.375)
Cylinder Bore Diameter (Max. Wear), in (mm) - 3.128 (79.45)
Cylinder Bore (Max. Taper), in (mm) - 0.0015 (0.038)
Cylinder Bore (Max. Out of Round), in (mm) - 0.002 (0.05)
Camshaft End Play, in (mm) - 0.003-0.013 (0.077-0.330)
Camshaft Bearing, in (mm) - 0.0010-0.0025 (0.025-0.063)
Crankcase End Play (Ball Bearing), in (mm) - 0.002-0.023 (0.051-0.580)

Piston and Piston Rings

Piston Thrust Face to Bore Running, in (mm) - 0.006-0.008 (0.15-0.20)
Top Ring Side Clearance, in (mm) - 0.002-0.004 (0.051-0.10)
Second Ring Side Clearance, in (mm) - 0.001-0.003 (0.025-0.077)
Oil Ring Side Clearance, in (mm) - 0.001-0.003 (0.025-0.077)
Rings End Gap, in (mm) - 0.010-0.020 (0.254-0.508)
Wrist Pin to Piston Boss (Max), in (mm) - 0.0003 (0.008)
Wrist Pin to Rod, in (mm) - 0.0006-0.0011 (0.016-0.027)
Piston Thrust Face Diameter (Max. Wear), in (mm) - 3.1165 (79.159)

Valves

Intake Valve to Tappet (Cold), in (mm) - 0.003-0.006 (0.076-0.150)
Exhaust Valve to Tappet (Cold), in (mm) - 0.011 -0.014 (0.279-0.355)
Valve Lift (Zero Lash), in (mm) - 0.280 (7.11)
Intake Valve Stem to Guide (Max), in (mm) - 0.0045 (0.114)
Exhaust Valve Stem to Guide (Max), in (mm) - 0.0065 (0.165)
Tappet Clearance in Guide (Max), in (mm) - 0.0005-0.0024 (0.013-0.060)
Valve Guide Interference Fit in Cylinder, in (mm) - 0.005-0.002 (0.013-0.051)
Valve Guide Ream Diameter, in (mm) - 0.312-0.313 (7.925-7.950)

Crankshaft

Crankshaft End Play (Sleeve Bearing), in (mm) - 0.002-0.014 (0.051-0.355)
Crankshaft Running Clearance (Sleeve Bearing), in (mm) - 0.0013-0.0033 (0.034-0.083)
Crankshaft Crankpin Diameter (Std), in (mm) - 1.3733-1.3738 (34.882-34.895)
Crankshaft Crankpin (Max. Out of Round), in (mm) - 0.0005 (0.013)
Crankshaft Crankpin (Max. Taper), in (mm) - 0.001 (0.025)
Crankshaft Main Bearing Diameter (Std), in (mm) - 1.7412-1.7422 (44.226-44.252)
Crankshaft Main Bearing Diameter (Min), in (mm) - 1.7407 (44.22)

Connecting Rod

Connecting Rod to Piston Pin Running, in (mm) - 0.0006-0.0011 (0.016-0.027)
Connecting Rod to Side Play on Crankpin, in (mm) - 0.005-0.016 (0.13-0.41)
Connecting Rod to Crankpin Running, in (mm) - 0.0012-0.0024 (0.030-0.060)
Connecting Rod Crankpin Bore Diameter, in (mm) - 1.3750-1.3757 (34.925-34.943)
Connecting Rod Crankpin Bore Diameter (Max), in (mm) - 1.3765 (34.963)
Connecting Rod Wristpin Bore Diameter, in (mm) - 0.62565 (15.891)

Cub Cadet 682 Engine Tightening Torque Specs

Spark Plugs, Nm (ft-lbs) - 14-20 (10-15)
Flywheel Retaining Screw, Nm (ft-lbs) - 54 (40)
Manifold Screws, Nm (ft-lbs) - 17 (12.6)
Closure Plate Screws, Nm (ft-lbs) - 17 (12.6)
Cylinder Head Screws, Nm (ft-lbs) - 20-27 (15-20)
Cylinder Barrel Stud Nuts, Nm (ft-lbs) - 40.5 (30)
Connecting Rod Screws, Nm (ft-lbs) - 23 (17)
Connecting Rod Nuts, Nm (ft-lbs) - 15.8 (11.7)
Crankcase Stud Nuts, Nm (ft-lbs) - 29 (21.5)
Crankcase Cap Screws, Nm (ft-lbs) - 17 (12.6)

CUB CADET TRACTORS TROUBLESHOOTING
1050	1863	2166	2182	2186
3184	3205	GT1554	GT2550	GTX2100
LT1040	LT1042	LT1045	LT1046	LT1050
LT2180	LTX1040	LTX1042	LTX1045	LTX1046
LTX1050	SLTX1054	XT1 LT42	XT1 LT46	XT3 GSX